I installed Optifine_HD_U_A4 for Minecraft 1.7.10, and while it does reduce lag for default and smooth chunk loading, for some reason, setting the chunk loading to Multi Core actually causes the lag to drop from an average of 45 fps to 10 fps. I've made sure all my CPU processors are allowed to run in Minecraft, I'm running it with a High-Performance NVIDIA Processor, and I've allocated 4 GB of ram into Minecraft. Why does Multi Core Chunk loading cause me lag?
Specs: Dell Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz 2.30 GHz
Specs: Dell Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz 2.30 GHz
8.00 GB
64-bit Operating System
You have an dual core CPU (Yes, it is dual core, mobile CPUs of intel Sandy/Ivy/Haswell series have an Q at end of their bin number to say if Quad)
Given it is dual core (hyper threading is excluded here), you should use smooth setting.